stm32/rcc: add shared code for hsi48 with crs support.

16 files changed, 38 insertions, 43 deletions

diff --git a/examples/stm32g4/src/bin/usb_serial.rs b/examples/stm32g4/src/bin/usb_serial.rs
index 9099b609a..188988b14 100644
--- a/examples/stm32g4/src/bin/usb_serial.rs
+++ b/examples/stm32g4/src/bin/usb_serial.rs
@@ -4,7 +4,7 @@
 
 use defmt::{panic, *};
 use embassy_executor::Spawner;
-use embassy_stm32::rcc::{Clock48MhzSrc, ClockSrc, CrsConfig, CrsSyncSource, Pll, PllM, PllN, PllQ, PllR, PllSrc};
+use embassy_stm32::rcc::{Clock48MhzSrc, ClockSrc, Hsi48Config, Pll, PllM, PllN, PllQ, PllR, PllSrc};
 use embassy_stm32::time::Hertz;
 use embassy_stm32::usb::{self, Driver, Instance};
 use embassy_stm32::{bind_interrupts, peripherals, Config};
@@ -41,9 +41,7 @@ async fn main(_spawner: Spawner) {
 
     if USE_HSI48 {
         // Sets up the Clock Recovery System (CRS) to use the USB SOF to trim the HSI48 oscillator.
-        config.rcc.clock_48mhz_src = Some(Clock48MhzSrc::Hsi48(Some(CrsConfig {
-            sync_src: CrsSyncSource::Usb,
-        })));
+        config.rcc.clock_48mhz_src = Some(Clock48MhzSrc::Hsi48(Hsi48Config { sync_from_usb: true }));
     } else {
         config.rcc.clock_48mhz_src = Some(Clock48MhzSrc::PllQ);
     }
diff --git a/examples/stm32h5/src/bin/eth.rs b/examples/stm32h5/src/bin/eth.rs
index 5bec9d447..b2758cba0 100644
--- a/examples/stm32h5/src/bin/eth.rs
+++ b/examples/stm32h5/src/bin/eth.rs
@@ -37,7 +37,7 @@ async fn net_task(stack: &'static Stack<Device>) -> ! {
 async fn main(spawner: Spawner) -> ! {
     let mut config = Config::default();
     config.rcc.hsi = None;
-    config.rcc.hsi48 = true; // needed for rng
+    config.rcc.hsi48 = Some(Default::default()); // needed for RNG
     config.rcc.hse = Some(Hse {
         freq: Hertz(8_000_000),
         mode: HseMode::BypassDigital,
diff --git a/examples/stm32h5/src/bin/usb_serial.rs b/examples/stm32h5/src/bin/usb_serial.rs
index 735826a69..13b218d00 100644
--- a/examples/stm32h5/src/bin/usb_serial.rs
+++ b/examples/stm32h5/src/bin/usb_serial.rs
@@ -4,9 +4,6 @@
 
 use defmt::{panic, *};
 use embassy_executor::Spawner;
-use embassy_stm32::rcc::{
-    AHBPrescaler, APBPrescaler, Hse, HseMode, Pll, PllDiv, PllMul, PllPreDiv, PllSource, Sysclk, VoltageScale,
-};
 use embassy_stm32::time::Hertz;
 use embassy_stm32::usb::{Driver, Instance};
 use embassy_stm32::{bind_interrupts, pac, peripherals, usb, Config};
@@ -23,26 +20,29 @@ bind_interrupts!(struct Irqs {
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) {
     let mut config = Config::default();
-    config.rcc.hsi = None;
-    config.rcc.hsi48 = true; // needed for usb
-    config.rcc.hse = Some(Hse {
-        freq: Hertz(8_000_000),
-        mode: HseMode::BypassDigital,
-    });
-    config.rcc.pll1 = Some(Pll {
-        source: PllSource::HSE,
-        prediv: PllPreDiv::DIV2,
-        mul: PllMul::MUL125,
-        divp: Some(PllDiv::DIV2), // 250mhz
-        divq: None,
-        divr: None,
-    });
-    config.rcc.ahb_pre = AHBPrescaler::DIV2;
-    config.rcc.apb1_pre = APBPrescaler::DIV4;
-    config.rcc.apb2_pre = APBPrescaler::DIV2;
-    config.rcc.apb3_pre = APBPrescaler::DIV4;
-    config.rcc.sys = Sysclk::PLL1_P;
-    config.rcc.voltage_scale = VoltageScale::Scale0;
+    {
+        use embassy_stm32::rcc::*;
+        config.rcc.hsi = None;
+        config.rcc.hsi48 = Some(Hsi48Config { sync_from_usb: true }); // needed for USB
+        config.rcc.hse = Some(Hse {
+            freq: Hertz(8_000_000),
+            mode: HseMode::BypassDigital,
+        });
+        config.rcc.pll1 = Some(Pll {
+            source: PllSource::HSE,
+            prediv: PllPreDiv::DIV2,
+            mul: PllMul::MUL125,
+            divp: Some(PllDiv::DIV2), // 250mhz
+            divq: None,
+            divr: None,
+        });
+        config.rcc.ahb_pre = AHBPrescaler::DIV2;
+        config.rcc.apb1_pre = APBPrescaler::DIV4;
+        config.rcc.apb2_pre = APBPrescaler::DIV2;
+        config.rcc.apb3_pre = APBPrescaler::DIV4;
+        config.rcc.sys = Sysclk::PLL1_P;
+        config.rcc.voltage_scale = VoltageScale::Scale0;
+    }
     let p = embassy_stm32::init(config);
 
     info!("Hello World!");
diff --git a/examples/stm32h7/src/bin/eth.rs b/examples/stm32h7/src/bin/eth.rs
index e37d8797b..b7a077374 100644
--- a/examples/stm32h7/src/bin/eth.rs
+++ b/examples/stm32h7/src/bin/eth.rs
@@ -36,7 +36,7 @@ async fn main(spawner: Spawner) -> ! {
         use embassy_stm32::rcc::*;
         config.rcc.hsi = Some(HSIPrescaler::DIV1);
         config.rcc.csi = true;
-        config.rcc.hsi48 = true; // needed for RNG
+        config.rcc.hsi48 = Some(Default::default()); // needed for RNG
         config.rcc.pll1 = Some(Pll {
             source: PllSource::HSI,
             prediv: PllPreDiv::DIV4,
diff --git a/examples/stm32h7/src/bin/eth_client.rs b/examples/stm32h7/src/bin/eth_client.rs
index 88df53f01..f0f28ec9c 100644
--- a/examples/stm32h7/src/bin/eth_client.rs
+++ b/examples/stm32h7/src/bin/eth_client.rs
@@ -37,7 +37,7 @@ async fn main(spawner: Spawner) -> ! {
         use embassy_stm32::rcc::*;
         config.rcc.hsi = Some(HSIPrescaler::DIV1);
         config.rcc.csi = true;
-        config.rcc.hsi48 = true; // needed for RNG
+        config.rcc.hsi48 = Some(Default::default()); // needed for RNG
         config.rcc.pll1 = Some(Pll {
             source: PllSource::HSI,
             prediv: PllPreDiv::DIV4,
diff --git a/examples/stm32h7/src/bin/low_level_timer_api.rs b/examples/stm32h7/src/bin/low_level_timer_api.rs
index e4bac8a5a..e0be495d1 100644
--- a/examples/stm32h7/src/bin/low_level_timer_api.rs
+++ b/examples/stm32h7/src/bin/low_level_timer_api.rs
@@ -19,7 +19,6 @@ async fn main(_spawner: Spawner) {
         use embassy_stm32::rcc::*;
         config.rcc.hsi = Some(HSIPrescaler::DIV1);
         config.rcc.csi = true;
-        config.rcc.hsi48 = true; // needed for RNG
         config.rcc.pll1 = Some(Pll {
             source: PllSource::HSI,
             prediv: PllPreDiv::DIV4,
diff --git a/examples/stm32h7/src/bin/rng.rs b/examples/stm32h7/src/bin/rng.rs
index af1d6ebb8..1fb4cfec0 100644
--- a/examples/stm32h7/src/bin/rng.rs
+++ b/examples/stm32h7/src/bin/rng.rs
@@ -15,7 +15,7 @@ bind_interrupts!(struct Irqs {
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) {
     let mut config = Config::default();
-    config.rcc.hsi48 = true; // needed for RNG.
+    config.rcc.hsi48 = Some(Default::default()); // needed for RNG
     let p = embassy_stm32::init(config);
     info!("Hello World!");
 
diff --git a/examples/stm32h7/src/bin/usb_serial.rs b/examples/stm32h7/src/bin/usb_serial.rs
index 19d77183b..648ff6eea 100644
--- a/examples/stm32h7/src/bin/usb_serial.rs
+++ b/examples/stm32h7/src/bin/usb_serial.rs
@@ -25,7 +25,7 @@ async fn main(_spawner: Spawner) {
         use embassy_stm32::rcc::*;
         config.rcc.hsi = Some(HSIPrescaler::DIV1);
         config.rcc.csi = true;
-        config.rcc.hsi48 = true; // needed for USB
+        config.rcc.hsi48 = Some(Hsi48Config { sync_from_usb: true }); // needed for USB
         config.rcc.pll1 = Some(Pll {
             source: PllSource::HSI,
             prediv: PllPreDiv::DIV4,
diff --git a/examples/stm32l0/src/bin/button_exti.rs b/examples/stm32l0/src/bin/button_exti.rs
index 441b00c6d..ffede253e 100644
--- a/examples/stm32l0/src/bin/button_exti.rs
+++ b/examples/stm32l0/src/bin/button_exti.rs
@@ -11,8 +11,7 @@ use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) {
-    let mut config = Config::default();
-    config.rcc.hsi48 = true;
+    let config = Config::default();
     let p = embassy_stm32::init(config);
 
     let button = Input::new(p.PB2, Pull::Up);
diff --git a/examples/stm32l0/src/bin/lora_cad.rs b/examples/stm32l0/src/bin/lora_cad.rs
index 61024ef79..8ca9e8b22 100644
--- a/examples/stm32l0/src/bin/lora_cad.rs
+++ b/examples/stm32l0/src/bin/lora_cad.rs
@@ -23,8 +23,8 @@ const LORA_FREQUENCY_IN_HZ: u32 = 903_900_000; // warning: set this appropriatel
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) {
     let mut config = embassy_stm32::Config::default();
+    config.rcc.hsi = true;
     config.rcc.mux = embassy_stm32::rcc::ClockSrc::HSI;
-    config.rcc.hsi48 = true;
     let p = embassy_stm32::init(config);
 
     let mut spi_config = spi::Config::default();
diff --git a/examples/stm32l0/src/bin/lora_lorawan.rs b/examples/stm32l0/src/bin/lora_lorawan.rs
index 9c4f32916..4365c4cf6 100644
--- a/examples/stm32l0/src/bin/lora_lorawan.rs
+++ b/examples/stm32l0/src/bin/lora_lorawan.rs
@@ -33,8 +33,8 @@ const LORAWAN_REGION: region::Region = region::Region::EU868; // warning: set th
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) {
     let mut config = embassy_stm32::Config::default();
+    config.rcc.hsi = true;
     config.rcc.mux = embassy_stm32::rcc::ClockSrc::HSI;
-    config.rcc.hsi48 = true;
     let p = embassy_stm32::init(config);
 
     let mut spi_config = spi::Config::default();
diff --git a/examples/stm32l0/src/bin/lora_p2p_receive.rs b/examples/stm32l0/src/bin/lora_p2p_receive.rs
index 4a50182c2..0627ac087 100644
--- a/examples/stm32l0/src/bin/lora_p2p_receive.rs
+++ b/examples/stm32l0/src/bin/lora_p2p_receive.rs
@@ -23,8 +23,8 @@ const LORA_FREQUENCY_IN_HZ: u32 = 903_900_000; // warning: set this appropriatel
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) {
     let mut config = embassy_stm32::Config::default();
+    config.rcc.hsi = true;
     config.rcc.mux = embassy_stm32::rcc::ClockSrc::HSI;
-    config.rcc.hsi48 = true;
     let p = embassy_stm32::init(config);
 
     let mut spi_config = spi::Config::default();
diff --git a/examples/stm32l0/src/bin/lora_p2p_send.rs b/examples/stm32l0/src/bin/lora_p2p_send.rs
index f6de6a5cd..4f12cadc8 100644
--- a/examples/stm32l0/src/bin/lora_p2p_send.rs
+++ b/examples/stm32l0/src/bin/lora_p2p_send.rs
@@ -23,8 +23,8 @@ const LORA_FREQUENCY_IN_HZ: u32 = 903_900_000; // warning: set this appropriatel
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) {
     let mut config = embassy_stm32::Config::default();
+    config.rcc.hsi = true;
     config.rcc.mux = embassy_stm32::rcc::ClockSrc::HSI;
-    config.rcc.hsi48 = true;
     let p = embassy_stm32::init(config);
 
     let mut spi_config = spi::Config::default();
diff --git a/examples/stm32l4/src/bin/spe_adin1110_http_server.rs b/examples/stm32l4/src/bin/spe_adin1110_http_server.rs
index f76b504a7..62caeea55 100644
--- a/examples/stm32l4/src/bin/spe_adin1110_http_server.rs
+++ b/examples/stm32l4/src/bin/spe_adin1110_http_server.rs
@@ -90,7 +90,7 @@ async fn main(spawner: Spawner) {
             divq: None,
             divr: Some(PllRDiv::DIV2), // sysclk 80Mhz clock (8 / 1 * 20 / 2)
         });
-        config.rcc.hsi48 = true; // needed for rng
+        config.rcc.hsi48 = Some(Default::default()); // needed for RNG
     }
 
     let dp = embassy_stm32::init(config);
diff --git a/examples/stm32l4/src/bin/usb_serial.rs b/examples/stm32l4/src/bin/usb_serial.rs
index 15c6f1982..d459245d5 100644
--- a/examples/stm32l4/src/bin/usb_serial.rs
+++ b/examples/stm32l4/src/bin/usb_serial.rs
@@ -23,7 +23,7 @@ async fn main(_spawner: Spawner) {
     info!("Hello World!");
 
     let mut config = Config::default();
-    config.rcc.hsi48 = true;
+    config.rcc.hsi48 = Some(Hsi48Config { sync_from_usb: true }); // needed for USB
     config.rcc.mux = ClockSrc::PLL1_R;
     config.rcc.hsi = true;
     config.rcc.pll = Some(Pll {
diff --git a/examples/stm32u5/src/bin/usb_serial.rs b/examples/stm32u5/src/bin/usb_serial.rs
index f59f623b3..eaa1c2912 100644
--- a/examples/stm32u5/src/bin/usb_serial.rs
+++ b/examples/stm32u5/src/bin/usb_serial.rs
@@ -29,8 +29,7 @@ async fn main(_spawner: Spawner) {
         n: Plln::MUL10,
         r: Plldiv::DIV1,
     });
-    //config.rcc.mux = ClockSrc::MSI(MSIRange::Range48mhz);
-    config.rcc.hsi48 = true;
+    config.rcc.hsi48 = Some(Hsi48Config { sync_from_usb: true }); // needed for USB
 
     let p = embassy_stm32::init(config);